Detailed Weather Data for Project: WAUR

Date Time TAIR WSPD RELH SRAD 06Nov2017 8 a.m. 54.82 0.00 88.08 16.00 06Nov2017 9 a.m. 55.26 0.00 90.53 57.00 06Nov2017 10 a.m. 53.73 0.00 90.89 106.00 06Nov2017 11 a.m. 59.54 0.00 91.20 146.00 06Nov2017 12 p.m. 54.93 0.00 84.85 176.00 06Nov2017 1 p.m. 55.71 0.00 81.74 238.00 06Nov2017 2 p.m. 60.21 0.00 81.19 224.00 06Nov2017 3 p.m. 61.75 0.00 78.81 198.00 06Nov2017 4 p.m. 62.62 0.00 76.06 243.00 06Nov2017 5 p.m. 62.19 0.00 78.45 115.00 06Nov2017 6 p.m. 56.91 0.00 81.13 14.00 06Nov2017 7 p.m. 50.22 0.00 72.52 0.00 06Nov2017 8 p.m. 55.49 0.00 85.53 0.00 06Nov2017 9 p.m. 53.94 0.00 85.76 0.00 06Nov2017 10 p.m. 51.53 0.00 87.36 0.00 06Nov2017 11 p.m. 50.65 0.00 88.27 0.00 07Nov2017 12 a.m. 50.54 0.00 89.73 0.00 07Nov2017 1 a.m. 49.44 0.00 90.16 1.00 07Nov2017 2 a.m. 48.24 0.00 91.32 0.00 07Nov2017 3 a.m. 48.13 0.00 91.87 0.00 07Nov2017 4 a.m. 47.89 0.00 93.21 0.00 07Nov2017 5 a.m. 48.34 0.00 91.88 0.00 07Nov2017 6 a.m. 49.44 0.00 89.06 0.00 07Nov2017 7 a.m. 49.44 0.00 87.35 0.00 Accuml. Values 1290.95 0.00 2066.95 1534.00 Num. Valid Values 24 0 24 24 Avg. Values 53.79 86.12 63.92 THE EMPERICAL EQUATIONS REQUIRE THESE PARAMETERS IN THESE UNITS: SRAD == CAL / SQUARE CENTIMETER WSPD == KILOMETERS PER DAY TAIR == DEGREES CELSIUS RELH == PERCENT Converted Values 12.11 0.00 86.12 131.89 Now start computations towards evaporation in inches per day Each intermediate calculation step will be shown. xcompl = 0.1388 definition: xcompl = 1 - (RELH_avg/100) TdC = 9.8487 definition: TdC = TAIR_avg - ((14.55 + (0.114*TAIR_avg))*xcompl +pow((2.5 + 0.007*TAIR_avg)*xcompl, 3) + (15.9 +0.117*TAIR_avg)*pow(xcompl, 14)) del_lambda1 = 0.5852 definition: del_lambda1 = pow(1+(0.66/pow(0.00815*TAIR_avg + 0.8912, 7)), -1) del_lambda2 = 0.4148 definition: del_lambda2 = 1 - del_lambda1 Qn = 0.3882 definition: Qn = 0.00714*SRAD_avg + 0.00000526*SRAD_avg*pow(TAIR_avg+17.8, 1.87) +0.00000394*pow(SRAD_avg, 2) - 0.00000000239*pow(SRAD_avg, 2)*pow(TAIR_avg-7.2, 2) - 1.02 es_ea = 1.9688 definition: es_ea = 33.86 * (pow(0.00738*TAIR_avg + 0.8072, 8) -pow(0.00738*TdC+0.8072, 8)) Ea = 0.7623 definition: Ea = pow(es_ea, 0.88) * (0.42 + 0.0029*WSPD_avg) Daily Evap: 0.021 inches definition: Daily Evap = (del_lambda1*Qn + del_lambda2*Ea) / 25.4

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